Singapore Navy, Rigid Hull Inflatable Boats RHIB

These two boats were seen at Marina Bay during a National Day Parade (NDP) practice. They are fast (over 30 knots) boats, used for base defense and boarding ships. Looks like a fifty calibre machine gun in the front, but not a Browning M2HB. The blue box next to the gun is the ammunition box filled with blanks. The cylinder at the top is probably radar.    

http://www.mindef.gov.sg/imindef/publications/cyberpioneer/news/2011/nov/02nov11_news2/02nov11_fs2.html

• Nikon D7000, Samyang 800mm f8 (mirror lens)
• At 800mm, f8, ISO 800, 1/500 seconds
• Manual exposure, center-weighted metering, auto white balance
• Picasa: Crop, auto contrast, fill light.

Trying out the Samyang 800mm for the first time. Crazy lens. On the D7000 it is equivalent to 1200mm on a full frame camera. Manual focus, and even at f8 the depth of field is shallow because of the long focal length. Would have liked to stop down to f11 or f16 but it's a mirror lens, so the aperture is fixed.